In: Anatomy and Physiology
Which of the following is an indication of secondary hypersecretion?
Group of answer choices
increase in ACTH levels
Increase in TSH levels
Increased levels of CRH
Increased levels of GnRH
Hypersecretion is a condition of endocrine system of body where
the hormone is secreted in excess amount.
Hypersecretion is of two types:
- primary
- secondary
In primary hypersecretion the hormone is secreted in excess
amount without increase in secretion of its regulating
hormone.
In secondary hypersecretion the hormone is secreted in excess
amount due to increase in secretion of its regulating
hormone.
Increase in TSH is associated with hyposecretion of thyroid
hormone. So this option is not correct.
CRH hormone is secreted by hypothalamic and it is a regulating
hormone. Its increased level do not suggest secondary
hypersecretion.
GnRH is also a regulating hormone that is secreted by
hypothalamus. Its increased levels are also not suggestive of
secondary hypersecretion.
ACTH is regulated by CRH hormone. ACTH regulates the secretion of
cortisol hormone. An increased levels of ACTH is suggestive of
secondary Hypercortisolism. So this is the correct option.